WO2011044705A9 - Method for controlling an injection process in an open-loop or closed-loop manner - Google Patents

Method for controlling an injection process in an open-loop or closed-loop manner Download PDF

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Publication number
WO2011044705A9
WO2011044705A9 PCT/CH2010/000248 CH2010000248W WO2011044705A9 WO 2011044705 A9 WO2011044705 A9 WO 2011044705A9 CH 2010000248 W CH2010000248 W CH 2010000248W WO 2011044705 A9 WO2011044705 A9 WO 2011044705A9
Authority
WO
WIPO (PCT)
Prior art keywords
loop
closed
open
injection
controlling
Prior art date
Application number
PCT/CH2010/000248
Other languages
German (de)
French (fr)
Other versions
WO2011044705A1 (en
WO2011044705A4 (en
Inventor
Juan Gruber
Max P. Waser
Original Assignee
Kistler Holding Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CH15752009A external-priority patent/CH702013A2/en
Priority claimed from CH01739/09A external-priority patent/CH702154A1/en
Application filed by Kistler Holding Ag filed Critical Kistler Holding Ag
Priority to CN201080046228.4A priority Critical patent/CN102574318B/en
Priority to EP10766209A priority patent/EP2488344A1/en
Priority to US13/499,405 priority patent/US9387617B2/en
Priority to JP2012533446A priority patent/JP5851993B2/en
Publication of WO2011044705A1 publication Critical patent/WO2011044705A1/en
Publication of WO2011044705A9 publication Critical patent/WO2011044705A9/en
Publication of WO2011044705A4 publication Critical patent/WO2011044705A4/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/762—Measuring, controlling or regulating the sequence of operations of an injection cycle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
    • B29C45/1706—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles using particular fluids or fluid generating substances
    • B29C2045/1707—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles using particular fluids or fluid generating substances using a liquid, e.g. water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
    • B29C2045/776—Measuring, controlling or regulating of velocity or pressure of moulding material determining the switchover point to the holding pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76003—Measured parameter
    • B29C2945/76006—Pressure
    • B29C2945/7601—Pressure derivative, change thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76003—Measured parameter
    • B29C2945/7604—Temperature
    • B29C2945/76043—Temperature derivative, change thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76177—Location of measurement
    • B29C2945/76254—Mould
    • B29C2945/76257—Mould cavity
    • B29C2945/7626—Mould cavity cavity walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76451—Measurement means
    • B29C2945/76454—Electrical, e.g. thermocouples
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76451—Measurement means
    • B29C2945/76454—Electrical, e.g. thermocouples
    • B29C2945/76458—Electrical, e.g. thermocouples piezoelectric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76451—Measurement means
    • B29C2945/76461—Optical, e.g. laser
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76451—Measurement means
    • B29C2945/76478—Mechanical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76822—Phase or stage of control
    • B29C2945/76829—Feeding
    • B29C2945/76839—Feeding auxiliary fluids, e.g. gas, liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76822—Phase or stage of control
    • B29C2945/76876—Switch-over
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76822—Phase or stage of control
    • B29C2945/76876—Switch-over
    • B29C2945/76882—Switch-over injection-holding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
    • B29C45/1706—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles using particular fluids or fluid generating substances
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • B29C45/561—Injection-compression moulding

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

The invention relates to a method for controlling an injection process in an open-loop or closed-loop manner in the production of a molded part (2), wherein melt mass (6) is injected by at least one injection unit (5) into at least one cavity (3) enclosed by a tool (4) by means of at least one nozzle (8). According to the invention, the at least one cavity (3) has at least one measuring location (13), which is coupled to a binary detector (14), which can change from a first defined state to a second defined state. The binary detector (14) changes the state thereof at the time at which the melt mass (6) arrives at the measuring location (13). On the basis of the state change of the binary detector, an open-loop or closed-loop control unit (10) controls the injection velocity V of the at least one injection unit (5) in an open-loop or closed-loop manner, the temperature T of the melt mass (6) before the injection, the termination of the injection at the at least one nozzle (8), and/or the starting of a subsequent process.
PCT/CH2010/000248 2009-10-12 2010-10-08 Method for controlling an injection process in an open-loop or closed-loop manner WO2011044705A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201080046228.4A CN102574318B (en) 2009-10-12 2010-10-08 For controlling or regulate the method for injection process
EP10766209A EP2488344A1 (en) 2009-10-12 2010-10-08 Method for controlling an injection process in an open-loop or closed-loop manner
US13/499,405 US9387617B2 (en) 2009-10-12 2010-10-08 Method for controlling an injection process in an open-loop or closed-loop manner
JP2012533446A JP5851993B2 (en) 2009-10-12 2010-10-08 Method for controlling the injection process in an open loop or closed loop manner

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH15752009A CH702013A2 (en) 2009-10-12 2009-10-12 Method for controlling injection process during manufacturing molded part, involves controlling velocity of injection unit, temperature of mass, termination of injection or starting of subsequent process based on state change of detector
CH1575/09 2009-10-12
CH1739/09 2009-11-11
CH01739/09A CH702154A1 (en) 2009-11-11 2009-11-11 Method for controlling injection process during manufacturing molded part, involves controlling velocity of injection unit, temperature of mass, termination of injection or starting of subsequent process based on state change of detector

Publications (3)

Publication Number Publication Date
WO2011044705A1 WO2011044705A1 (en) 2011-04-21
WO2011044705A9 true WO2011044705A9 (en) 2011-06-30
WO2011044705A4 WO2011044705A4 (en) 2011-09-01

Family

ID=43498558

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2010/000248 WO2011044705A1 (en) 2009-10-12 2010-10-08 Method for controlling an injection process in an open-loop or closed-loop manner

Country Status (5)

Country Link
US (1) US9387617B2 (en)
EP (1) EP2488344A1 (en)
JP (1) JP5851993B2 (en)
CN (1) CN102574318B (en)
WO (1) WO2011044705A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105431273B (en) * 2013-08-01 2018-06-19 艾姆弗勒克斯有限公司 The injection molding machine and method of the variation of material property during consideration injection operation
CN105451962B (en) * 2013-08-09 2018-05-08 日产自动车株式会社 Injection control method and injection control device
JP6619837B2 (en) 2017-04-25 2019-12-11 キストラー ホールディング アクチエンゲゼルシャフト Method for reproducing quality of injection molded part in injection molding and injection molding unit performing the method
KR102409315B1 (en) * 2018-10-05 2022-06-14 키스틀러 홀딩 아게 How to control an injection molding system
JP7487574B2 (en) * 2020-06-15 2024-05-21 セイコーエプソン株式会社 Injection molding apparatus and method

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Also Published As

Publication number Publication date
CN102574318A (en) 2012-07-11
WO2011044705A1 (en) 2011-04-21
WO2011044705A4 (en) 2011-09-01
US20120187592A1 (en) 2012-07-26
CN102574318B (en) 2015-11-25
US9387617B2 (en) 2016-07-12
EP2488344A1 (en) 2012-08-22
JP2013507272A (en) 2013-03-04
JP5851993B2 (en) 2016-02-03

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